Chrissy Teigen has revealed the special reason why she's keeping the gender of her second child a secret

Chrissy Teigen has spoken out about the special reason why she won't be revealing the gender of her baby anytime soon.

There seems to be a lot of speculation about whether or not Chrissy and John are having a girl.

Over the weekend, the mum-of-one was on a trip in New York when she posted a selfie showing her growing baby bump, and captioned it: 'Girls weekend - Quaker Hill, NY - 2018'

Since Chrissy didn't mention any women she was with and Luna was off having fun at Sundance Film Festival with her dad, John Legend, fans have come to the conclusion she was talking about her baby bump.

'So does it mean the baby is a girl?' one said.

'Did she announce the gender yet [I don't know] but it hints at a GIRLS night that means GIRL', commented another.

Despite her fans' curiosity over the gender of her baby, the couple already know what they're having and the model won't be revealing the details anytime soon.

She told E! News: 'We know. We knew when we put it in, but John was like, "Make sure you don't say it. Let's have one thing for us".'

So in a bid to respect her husband's wishes, Chrissy has vowed to try keeping the secret to herself for as long as possible.

'Of course I'm probably going to end up saying it,' she said, 'but I'm just going to do this favour to him for as long as I can'.

One thing that is confirmed is that Chrissy will be picking the kid's name.

'John picked Luna, so I decided I get to pick this one', she said to E! News.

She's also revealed that she won't be sharing any baby names with friends or family until the pair have settled on one, because there'll always be someone who doesn't like it.

She said: 'Names are tough. What I learned was, never share your ideas.

'If you have a name idea, someone is going to be like "No, I knew a person by that name in high school, and they were gross". That always happens.'